Tag Archives | Optics
Optical Tweezers Split Ultracold Atom Clouds

Optical Tweezers Split Ultracold Atom Clouds

Physicists at New Zealand’s University of Otago have pushed the frontiers of quantum technology by developing a steerable ‘optical tweezers’ unit that uses intense laser beams to precisely split minute clouds of ultracold atoms and to smash them together.   The Otago researchers’ feat is set to enhance efforts to understand the mysterious ways that [...]

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New Energy Technologies: Rainbow-Catching

New Energy Technologies: Rainbow-Catching

By slowing and absorbing certain wavelengths of light, engineers open new possibilities in solar power, thermal energy recycling and stealth technology   More efficient photovoltaic cells. Improved radar and stealth technology. A new way to recycle waste heat generated by machines into energy. All may be possible due to breakthrough photonics research at the University [...]

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Thinnest LEDs Stronger, More Energy Efficient

Thinnest LEDs Stronger, More Energy Efficient

Most modern electronics, from flat-screen TVs and smartphones to wearable technologies and computer monitors, use tiny light-emitting diodes, or LEDs. These LEDs are based off of semiconductors that emit light with the movement of electrons. As devices get smaller and faster, there is more demand for such semiconductors that are tinier, stronger and more energy [...]

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Future Electronics: Super-Efficient Hard Drives

Future Electronics: Super-Efficient Hard Drives

Researchers from ETH Zurich and the Paul Scherrer Institute PSI demonstrate how the magnetic structure can be altered quickly in novel materials. The effect could be used in efficient hard drives of the future.   Data on a hard drive is stored by flipping small magnetic domains. Researchers from the Paul Scherrer Institute PSI and [...]

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Magnet for Fast and Cheap Data Storage

Magnet for Fast and Cheap Data Storage

Professor Rasing, physicist at Radboud University Nijmegen, came up with a new synthetic material for optical data storage.   Optical data storage does not require expensive magnetic materials as synthetic alternatives work just as well. This is the finding of an international team from York, Berlin and Nijmegen, published Thursday February 27 in Applied Physics [...]

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New Record Set for Data-Transfer Speeds

New Record Set for Data-Transfer Speeds

Researchers at IBM have set a new record for data transmission over a multimode optical fiber, a type of cable that is typically used to connect nearby computers within a single building or on a campus. The achievement demonstrated that the standard, existing technology for sending data over short distances should be able to meet [...]

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A New Laser for a Faster Internet

A New Laser for a Faster Internet

A new laser developed by a research group at Caltech holds the potential to increase by orders of magnitude the rate of data transmission in the optical-fiber network — the backbone of the Internet.   The study was published the week of February 10-14 in the online edition of the Proceedings of the National Academy [...]

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World’s Most Powerful Terahertz Laser Chip

World’s Most Powerful Terahertz Laser Chip

University of Leeds researchers have taken the lead in the race to build the world’s most powerful terahertz laser chip.   A paper in the Institution of Engineering and Technology’s (IET) journal Electronics Letters reports that the Leeds team has exceeded a 1 Watt output power from a quantum cascade terahertz laser. The new record [...]

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First Single-Molecule LED Created

First Single-Molecule LED Created

The ultimate challenge in the race to miniaturize light emitting diodes (LED) has now been met: a team led by the Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS, CNRS/Université de Strasbourg), in collaboration with UPMC and CEA, has developed the first ever single-molecule LED. The device is formed from a single [...]

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Optical Rogue Waves: The Storm in a Test Tube

Optical Rogue Waves: The Storm in a Test Tube

Random processes in nature often underlie a so-called normal distribution that enables reliable estimation for the appearance of extreme statistical events. Meteorological systems are an exception to this rule, with extreme events appearing at a much higher rate than could be predicted from long-term observation at much lower magnitude. One such example is the appearance [...]

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